
<!DOCTYPE html>
<html>

<head>
    <meta charset="UTF-8" />
    <style>
        * {
            margin: 0;
            padding: 0;
            overflow: hidden;
        }

        body,
        #box {
            width: 100%;
            background-color: #1f1f1f;
            height: 100vh;
        }
    </style>
</head>

<body>
    <div id="box"></div>
    <script type="importmap">
        {
            "imports": {
                "three": "./three/build/three.module.js",
                "three/addons/": "./three/examples/jsm/",
                "three/example/": "./three/examples/"
            }
        }
    </script>


    <script type="module">
        import * as THREE from 'three'
        import { OrbitControls } from 'three/addons/controls/OrbitControls.js';

        import { EffectComposer } from 'three/example/jsm/postprocessing/EffectComposer.js';
        import { RenderPass } from 'three/example/jsm/postprocessing/RenderPass.js';
        import { OutlinePass } from 'three/example/jsm/postprocessing/OutlinePass.js'
        import { OutputPass } from 'three/example/jsm/postprocessing/OutputPass.js'

        const box = document.getElementById('box')
        const scene = new THREE.Scene()
        const renderer = new THREE.WebGLRenderer()

        // 相机
        const camera = new THREE.PerspectiveCamera();
        camera.position.set(200, 200, 200);
        camera.lookAt(0, 50, 40);

        scene.add(new THREE.AxesHelper(500))

        // 添加模型
        const geometry1 = new THREE.BoxGeometry(10, 10, 10);
        const geometry2 = new THREE.SphereGeometry(10);
        const geometry3 = new THREE.CylinderGeometry(10, 10, 100);
        const material = new THREE.MeshBasicMaterial({ color: 0xff0000 });
        const mesh1 = new THREE.Mesh(geometry1, material);
        mesh1.position.set(0, 0, 0);
        const mesh2 = new THREE.Mesh(geometry2, material);
        mesh2.position.set(0, 0, 30);
        const mesh3 = new THREE.Mesh(geometry3, material);
        mesh3.position.set(0, 0, 60);
        scene.add(mesh1);
        scene.add(mesh2);
        scene.add(mesh3);

        renderer.setSize(box.clientWidth, box.clientHeight)
        box.appendChild(renderer.domElement)

        // 后期处理
        const composer = new EffectComposer(renderer);
        const renderPass = new RenderPass(scene, camera);
        composer.addPass(renderPass);

        // 轮廓
        const outlinePass = new OutlinePass(new THREE.Vector2(box.clientWidth, box.clientHeight), scene, camera);
        composer.addPass(outlinePass);

        //模型描边颜色，默认白色         
        outlinePass.visibleEdgeColor.set(0xffff00);
        //高亮发光描边厚度
        outlinePass.edgeThickness = 4;
        //高亮描边发光强度
        outlinePass.edgeStrength = 6;             
        //模型闪烁频率控制，默认0不闪烁
        outlinePass.pulsePeriod = 20;

        // 色彩校正
        const outputPass = new OutputPass();
        composer.addPass(outputPass);

        // 点击事件
        const raycaster = new THREE.Raycaster()
        box.addEventListener('click', (event) => {
            const mouse = new THREE.Vector2(
                (event.offsetX / event.target.clientWidth) * 2 - 1,
                -(event.offsetY / event.target.clientHeight) * 2 + 1
            )
            raycaster.setFromCamera(mouse, camera)
            const intersects = raycaster.intersectObjects(scene.children)
            if (intersects.length > 0) {
                outlinePass.selectedObjects = [intersects[0].object]
            } else {
                outlinePass.selectedObjects = []
            }
        })


        new OrbitControls(camera, renderer.domElement)
        animate()
        function animate() {
            requestAnimationFrame(animate)
            renderer.render(scene, camera)
            composer.render()
        }
    </script>

</body>

</html>